Base | Representation |
---|---|
bin | 10100001011111100… |
… | …11111101100101001 |
3 | 1000222022000112202211 |
4 | 22011332133230221 |
5 | 134143421441311 |
6 | 4551225125121 |
7 | 532365551224 |
oct | 120576375451 |
9 | 30868015684 |
10 | 10837687081 |
11 | 4661656791 |
12 | 21256297a1 |
13 | 10394071c0 |
14 | 74b4dc5bb |
15 | 4366cb821 |
hex | 285f9fb29 |
10837687081 has 4 divisors (see below), whose sum is σ = 11671355332. Its totient is φ = 10004018832.
The previous prime is 10837687073. The next prime is 10837687087. The reversal of 10837687081 is 18078673801.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18078673801 = 83 ⋅217815347.
It can be written as a sum of positive squares in 2 ways, for example, as 3643933225 + 7193753856 = 60365^2 + 84816^2 .
It is a cyclic number.
It is not a de Polignac number, because 10837687081 - 23 = 10837687073 is a prime.
It is a super-2 number, since 2×108376870812 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (10837687087) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416834106 + ... + 416834131.
It is an arithmetic number, because the mean of its divisors is an integer number (2917838833).
Almost surely, 210837687081 is an apocalyptic number.
It is an amenable number.
10837687081 is a deficient number, since it is larger than the sum of its proper divisors (833668251).
10837687081 is an equidigital number, since it uses as much as digits as its factorization.
10837687081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 833668250.
The product of its (nonzero) digits is 451584, while the sum is 49.
The spelling of 10837687081 in words is "ten billion, eight hundred thirty-seven million, six hundred eighty-seven thousand, eighty-one".
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